A signal processing apparatus includes: an autocorrelation processing circuit configured to generate an autocorrelation symbol; a symbol replica generation circuit configured to generate a symbol replica; an individual likelihood value calculation circuit configured to calculate a plurality of individual likelihood values by using the generated autocorrelation symbol and the generated symbol replica; a path likelihood value calculation circuit configured to integrate, for each of the plurality of calculated individual likelihood values, the individual likelihood value of the target frame and an integrated value of an individual likelihood value of a frame preceding the target frame to obtain a plurality of path likelihood values; and a path likelihood value selection circuit configured to select the largest path likelihood value from among the calculated path likelihood values to output frame identification information that corresponds to the selected path likelihood value.
Provided is a power conversion controller in which variation in reactive power among power conversion controllers can be inhibited while maintaining the running performance of vehicles. The power conversion controller includes a power factor setter that sets a power factor based on a detection value of an overhead line voltage, and a calculator that calculates a reactive current command value by multiplying an active current command value by a tangent of a power factor angle of the power factor. The power factor setter sets a reference value set in advance as the power factor if the detection value is within a reference range, sets a value smaller than the reference value as the power factor if the detection value is below the reference range, and sets a value larger than the reference value as the power factor if the detection value is beyond the reference range.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
H02M 7/44 - Conversion of dc power input into ac power output without possibility of reversal by static converters
H02M 7/797 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
B60L 9/24 - Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines
3.
Wireless communication apparatus, data reception method, and program
Provided is a wireless communication apparatus, comprising: a symbol synthesis circuit that synthesizes received symbols; a demodulation circuit that demodulates the received symbols each before and after the synthesis; an error correction circuit that corrects demodulated received data from the demodulation circuit; a detection circuit that detects a first error detection code from the error corrected received data; a second detection circuit that detects a second error detection code obtained by inverting a plurality of arbitrary bits from the error corrected received data; a received data selection circuit that selects the received data, wherein: the received data selection circuit determines a modulation scheme used upon transmission by using detection results of the first and second error detection codes and selects received data corresponding to the determined modulation scheme.
Toshiba Infrastructure Systems & Solutions Corporation (Japan)
Inventor
Kunomura, Ken
Shimizu, Toshimasa
Sato, Kenji
Kato, Hirokazu
Yuuki, Kazuaki
Uchida, Toshiyuki
Morita, Masatsugu
Miyajima, Hiroki
Monden, Yukitaka
Abstract
A controller of an embodiment includes a limiter receiving an active current command initial value, limiting a maximum value of the active current command initial value with a predetermined value, and outputting a first value; a circuit to calculate a reactive current command initial value; a calculator to calculate a reactive current command adjustment value; a unit receiving the first value as an input, and calculating a reactive current upper limit value such that a composite value of the first value and the reactive current upper limit value is equal to or smaller than an input current maximum value; and a limiter to output the reactive current command adjustment value or the reactive current upper limit value, whichever is smaller. The predetermined value is a value to set the reactive current upper limit value to a value larger than zero and smaller than the input current maximum value.
B60L 9/24 - Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
H02M 7/48 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
B60L 50/53 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
Provided is a collected current monitoring device enabling an analysis of collected current in each current collector while allowing a reduced equipment cost. The collected current monitoring device of the present disclosure is installed in a railroad vehicle including current collectors, main transformers, and main converters. The collected current monitoring device includes: a supply current sensor configured to measure a current supplied to a freely-selected one of the main transformers, at least one current-sensor-between-current-collectors disposed in each communication path connecting two adjacent ones of the current collectors and configured to measure a current flowing in the communication path, and a processor configured to calculate a current flowing in each of the current collectors based on the current measured by the supply current sensor and the current measured by the at least one current-sensor-between-current-collectors, and on a distribution ratio of the currents supplied to the main transformers.
A floating caliper brake device for a railroad vehicle includes: a support pin that is supported by a cylindrical portion of a support frame in such a manner as to be slidable in a direction X; a caliper; a first and second brake shoe; a pressurizing device that moves the first brake shoe back and forth; an elastic member that is expandable and contractible in the direction X; a stopper member that is immovable relatively to the cylindrical portion in the direction X; and a moving member that is frictionally engaged with the support pin so as to be slidable in the direction X.
F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
B61H 5/00 - Applications or arrangements of brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
F16D 55/2265 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially the axial movement being guided by one or more pins
39 - Transport, packaging, storage and travel services
Goods & Services
Arranging of passenger transportation services for others via an online application; arranging of transportation for travel tours; booking of transport; booking of transportation via a website; booking of transportation via global computer networks; booking of transportation through travel agencies; travel route planning and booking of travel tickets and transport, via electronic means; providing information relating to the planning and booking of travel and transport, via electronic means; travel transport arrangement and reservation services for travelers
39 - Transport, packaging, storage and travel services
Goods & Services
Arranging of passenger transportation services for others via an online application; arranging of transportation for travel tours; booking of transport; booking of transportation via a website; booking of transportation via global computer networks; booking of transportation through travel agencies; travel route planning and booking of travel tickets and transport, via electronic means; providing information relating to the planning and booking of travel and transport, via electronic means; travel transport arrangement and reservation services for travelers
39 - Transport, packaging, storage and travel services
Goods & Services
(1) Arranging of passenger transportation services for others via an online application; arranging of transportation for travel tours; booking of transport; booking of transportation via a website; booking of transportation via global computer networks; booking of transportation through travel agencies; planning and booking of travel and transport, via electronic means; providing information relating to the planning and booking of travel and transport, via electronic means; travel arrangement and reservation services, excluding those for lodging
11.
Temperature abnormality detection system and temperature abnormality detection method
B61K 9/04 - Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
G01K 1/02 - Means for indicating or recording specially adapted for thermometers
Provided is a method for switching to a high gain modulation scheme of a control signal, in which communication is possible even when the line quality significantly deteriorates, and the transmission speed is not affected when the line quality is excellent. This wireless communication device includes: a symbol combination circuit which combines reception symbols; demodulation circuits which demodulate the reception symbols before and after combination; error correction circuits which perform error correction on reception data after demodulation; a detection circuit which detects a first error detection code from the reception data after the error correction; a second detection circuit which detects a second error detection code, in which a plurality of arbitrary bits are inverted, from the reception data after the error correction; and a reception data selection circuit which selects reception data. The reception data selection circuit uses the detection results of the first and the second error detection codes, determines the modulation scheme used during transmission, and selects the reception data corresponding to the determined modulation scheme.
NATIONAL RESEARCH INSTITUTE FOR EARTH SCIENCE AND DISASTER RESILIENCE (Japan)
CENTRAL JAPAN RAILWAY COMPANY (Japan)
NICHIBAN CO., LTD. (Japan)
Inventor
Adachi, Satoru
Kubo, Junichiro
Imanishi, Tatsuhiko
Kezuka, Takahiro
Yamamoto, Kazuo
Koga, Yukinori
Ota, Yuko
Nakamura, Takeshi
Abstract
[Problem] To provide a film or sheet that has good snow slip properties, for wet snow in temperatures from near freezing or higher and snow that has been fully or partially melted by solar radiation after snow has accumulated. [Solution] A snow slip film or sheet that: has an arithmetic average roughness (Ra) for the snow-contact surface of the base material film or sheet of 0.01–0.50 µm in both the X-axis direction and a Y-axis direction orthogonal thereto; has a water contact angle for the surface of no more than 40º after 300 s of water contact; and for which (water contact angle for the surface after 1 s of water contact)/(water contact angle for the surface after 300 s of water contact) is at least 1.2.
E04H 9/16 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against adverse conditions, e.g. extreme climate, pests
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
A current collector monitoring system in one aspect of the present disclosure is provided with: a collected current measurement unit; a collected current state determination unit; an image acquisition unit; an event recognition unit; an event determination unit; and a determination result output unit. When a state of collected current corresponds to an abnormal state, the image acquisition unit acquires an image including, within an angle of view, a collector shoe provided to a current collector.
B60L 13/00 - Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
G01H 1/00 - Measuring vibrations in solids by using direct conduction to the detector
G01R 31/00 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 9/24 - Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines
B60L 5/02 - Current-collectors for power supply lines of electrically-propelled vehicles with ice-removing device
B60L 5/39 - Current-collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails from third rail
H01F 27/42 - Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors or choke coils
Toshiba Infrastructure Systems & Solutions Corporation (Japan)
Inventor
Sato, Kenji
Kato, Hirokazu
Fukushima, Takafumi
Otani, Hiroaki
Makino, Tomoyuki
Uchida, Toshiyuki
Mori, Manato
Abstract
According to one embodiment, an electric power conversion system includes a convertor, a detector, a delay controller, and a determinator. The detector is configured to detect information related to a voltage of electric power converted by the converter. The delay controller is configured to delay a conversion operation start of the converter by a first predetermined time with respect to a supply start time at which supply of the electric power is started. The determinator is configured to perform a first determination on the basis of a detection result detected by the detector before elapse of the first predetermined time from the supply start tune, and to perform a second determination on the basis of a detection result detected by the detector after the elapse of the first predetermined time from the supply start time.
H02M 1/36 - Means for starting or stopping converters
H02H 7/12 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for rectifiers for static converters or rectifiers
Provided is a brake control system that can reduce use of a mechanical braking in a railway vehicle using an automatic train control (ATC). The present disclosure is a brake control system for a railway vehicle using an ATC. The brake control system includes: a main electric motor, a main conversion device, a brake controller, and an ATC device. The main electric motor generates a braking force by converting kinetic energy of a wheel of the railway vehicle to electrical energy. The main conversion device actuates the main electric motor. The brake controller outputs a braking signal to the main conversion device. The ATC device outputs a braking command to the brake controller based on the ATC. In addition, the ATC device outputs a preliminary braking signal for energizing the main electric motor prior to output of the braking command.
B60T 8/17 - Using electrical or electronic regulation means to control braking
B61H 11/14 - Combinations of different types of brakes, e.g. brake blocks acting on wheel-rim combined with disc brakes
B60T 8/1761 - Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
B61H 11/00 - Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
B61H 9/06 - Brakes characterised by, or modified for, their application to special railway systems or purposes for storing energy during braking action
B60L 50/53 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
B60T 1/10 - Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors
F16D 61/00 - Brakes with means for making the energy absorbed available for use
22.
Vehicle body inclination controller and failure determination device for vehicle body inclination controller
A vehicle body inclination controller includes an air spring, an air reservoir, valve devices, an acquisition section, and a determination section. The determination section compares, with a predetermined threshold, at least one of a value of a ratio between supply control information of a supply valve and exhaust control information of an exhaust valve in the same valve device among the valve devices, a value of a ratio between pieces of the supply control information of the supply valves of different valve devices among the valve devices, or a value of a ratio between pieces of the exhaust control information of the exhaust valves of different valve devices among the valve devices, and determines that a failure occurs in the same valve device or at least one of the different valve devices when the value of the ratio exceeds the predetermined threshold.
B60G 17/0185 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection
B60G 99/00 - Subject matter not provided for in other groups of this subclass
B61F 5/10 - Bolster supports or mountings incorporating fluid springs
B61F 5/24 - Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
B61F 1/14 - Attaching or supporting vehicle body structure
Provided is a floating caliper brake device 100 for a railway vehicle, comprising: a support frame 1 having a cylindrical section 1a; a support pin 2 supported by the cylindrical section 1a so as to be slidable in an X-direction; a caliper 3 including a first arm 3a and a second arm 3b; a first brake shoe 4; a second brake shoe 5 facing the first brake shoe 4; a pressing device 6 for moving the first brake shoe 4 forward and backward; an elastic member 7 capable of extending and contracting in the X-direction; an engagement member 8 incapable of moving in the X-direction relative to the cylindrical section 1a; and a movement member 9 frictionally engaged with the support pin 2 so as to be slidable in the X-direction. The L-side ends of both the elastic member 7 and the engagement member 8 are individually supported by the cylindrical section 1a. A part of the R-side end of the engagement member 8 overlaps the movement member 9 when viewed in the X-direction. The R-side end of the elastic member 7 protrudes further toward the R-side than the R-side end of the engagement member 8 and is connected to the movement member 9.
F16D 55/2265 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially the axial movement being guided by one or more pins
B61H 5/00 - Applications or arrangements of brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
A brake lining includes friction structures, back boards fastened to respective the friction structures, a base plate supporting the friction structures. Each of the friction structures includes two adjacent friction portions with a groove formed in the front surface in between, and a thin portion with a smaller thickness than thicknesses of the friction portions, the thin portion located in a position corresponding to the groove. Each of the friction structures is supported by the base plate on two support points located in the two friction portions respectively. The thin portion has a constant length, the length being equal to a maximum width of the friction portions and satisfying a condition that L/D is equal to or greater than 1.1, where D denotes the length of the thin portion and L denotes a distance between the two support points located in the friction portions.
A voltage estimating device for a power supply line according to one aspect of the present disclosure includes a voltage detector, a current detector, a voltage calculator. The voltage calculator calculates a magnitude of alternating primary voltage that a primary winding in a transformer receives from a power supply line based on a magnitude of tertiary voltage in the transformer detected by the voltage detector, a magnitude of output current in the transformer detected by the current detector, and correlation information. The correlation information indicates a correlation between a voltage ratio and the magnitude of the output current, and the voltage ratio represents a ratio of the magnitude of the primary voltage to the magnitude of the tertiary voltage.
B61L 3/00 - Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal
B60L 9/00 - Electric propulsion with power supply external to the vehicle
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
H01F 27/40 - Structural association with built-in electric component, e.g. fuse
B60L 9/28 - Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines polyphase motors
G01R 31/00 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
H01F 27/42 - Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors or choke coils
09 - Scientific and electric apparatus and instruments
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer programs [downloadable]; downloadable mobile
applications for booking of railway seats for travelers;
downloadable software for booking of railway seats for
travelers; computer application software for mobile phones,
portable media players, handed computers, namely, software
for booking of railway seats for travelers; computer memory
devices; computer operating programs, recorded; computer
peripheral devices; computer programs, recorded; computer
software application, downloadable; computer software,
recorded. Transport; railway transport; passenger train transport;
booking of railway seats for travelers; coordinating travel
arrangements for individuals and for groups; booking of
travel tickets; on-line transportation reservation and
travel reservation services; providing travel information to
travelers regarding fares, timetables and public transport;
transport of travelers; transport services for sightseeing
tours; transport reservation; transport brokerage;
transportation information; traffic information; travel
reservation; arranging of travel tours. Computer software design, computer programming, or
maintenance of computer software; rental of computers;
providing computer programs (terms too vague in the opinion
of the International Bureau – Rule 13 (2) (b) of the Common
Regulations); providing computer programs via websites on
the Internet; providing computer programs for use in
electronic commerce; providing computer programs for use in
online transportation reservation service and travel ticket
booking service; providing computer programs for use in
booking of travel tickets; providing computer programs for
use in arrangement of individual and group tours; providing
computer programs for use in seat reservation for travelers;
updating of computer software; providing information on
version upgrade of computer software.
A current collector monitoring system according to one aspect of the present disclosure is provided with: a collected current measurement unit; a collected current state determination unit; an image acquisition unit; an event recognition unit; an event determination unit; and a determination result output unit. When the state of the collected current corresponds to an abnormal state, the image acquisition unit acquires an image including, within an angle of view, a collector shoe provided to a current collector.
Provided is a collector shoe. The collector shoe according to one aspect of the present disclosure is provided with: a shoe body; a slide plate provided on the upper surface of the shoe body; and a conductive member provided on the front and/or rear side surface of the shoe body.
B60L 5/20 - Current-collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire - Details of contact bow
B60L 5/08 - Structure of the sliding shoes or their carrying means
In this measuring device, when a beam member having a predetermined length is moved over and in contact with rails by two rollers spaced apart from each other by a preset distance, the angular velocity acting on the beam member is detected, and the product of the detected angular velocity and the two-point distance between the contact points with the two rollers is calculated as a track misalignment amount in the midpoint between the two contact points.
G01B 21/00 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
Toshiba Infrastructure Systems & Solutions Corporation (Japan)
Inventor
Sato, Kenji
Ueno, Masayuki
Fukushima, Takafumi
Okada, Shigekazu
Oda, Kotaro
Otani, Hiroaki
Maki, Yasuomi
Kikkawa, Kenichi
Fujita, Tsunehito
Mori, Manato
Abstract
A power conversion system includes a transformer, a power conversion device for travel, a power conversion device for auxiliary power sources, and an electrical storage device. The power conversion device for auxiliary power sources includes a first AC to DC conversion unit, a power conversion unit for AC loads, and a power conversion unit for DC loads. The power conversion unit for AC loads converts DC power into AC power and supplies it to an AC load. The power conversion unit for DC loads converts DC power produced through conversion by the first AC to DC conversion unit into DC power and supplies it to a DC load. The electrical storage device is connected to power lines connecting DC power output terminals of the first AC to DC conversion unit and DC power input terminals of both the power conversion units for AC and DC loads. When power supplied from a tertiary winding of the transformer to the first AC to DC conversion unit is reduced, the electrical storage device discharges power corresponding to the power reduction.
B60L 50/51 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc
H02M 7/219 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION (Japan)
Inventor
Fukushima, Takafumi
Taniyama, Noriyuki
Okada, Shigekazu
Oda, Kotaro
Otani, Hiroaki
Maki, Yasuomi
Kikkawa, Kenichi
Fujita, Tsunehito
Mori, Manato
Abstract
A power conversion system includes a transformer, a power conversion device for travel, a power conversion device for auxiliary power sources, an electrical storage device, and an auxiliary device. The power conversion device for travel converts AC power into power for travel and supplies it to a travel motor. The power conversion device for auxiliary power sources includes an AC to DC conversion unit which converts AC power into DC power, a power conversion unit for AC loads which converts the DC power into AC power and supplies it to an AC load, and a power conversion unit for DC loads which converts DC power to DC power and supplies it to a DC load. The electrical storage device is connected to power lines connecting DC power output terminals of the AC to DC conversion unit and DC power input terminals of both the power conversion units for AC and DC loads. The auxiliary device is connected to power lines connecting the power conversion device for auxiliary power sources and the electrical storage device and operates with power supplied from the electrical storage device.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc
H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
H02M 7/219 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
Toshiba Infrastructure Systems & Solutions Corporation (Japan)
Inventor
Fukushima, Takafumi
Okada, Shigekazu
Oda, Kotaro
Maki, Yasuomi
Fujita, Tsunehito
Otani, Hiroaki
Kikkawa, Kenichi
Mori, Manato
Abstract
A power conversion system includes an AC to DC conversion circuit, a voltage detector, a step-down chopper circuit, a power conversion device for auxiliary power sources, and a control unit. The AC to DC conversion circuit converts AC power supplied from overhead wires via a transformer into DC power. The voltage detector detects a voltage of AC power supplied from the transformer. The step-down chopper circuit steps down the voltage of DC power produced through conversion by the AC to DC conversion circuit. The power conversion device for auxiliary power sources converts the DC power stepped down by the step-down chopper circuit into power for driving loads mounted in an electric vehicle and supplies it to the loads. The control unit controls the AC to DC conversion circuit and the step-down chopper circuit such that the voltage of AC power detected by the voltage detector approaches a reference voltage.
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc
H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
H02M 7/219 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 7/12 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
B60L 9/00 - Electric propulsion with power supply external to the vehicle
H02J 7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
B60L 53/24 - Using the vehicle's propulsion converter for charging
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION (Japan)
Inventor
Sato Kenji
Fukushima Takafumi
Misu Daisuke
Matsushita Makoto
Hasebe Toshio
Abstract
A cage induction motor according to a mode of embodiment of the present invention includes a rotor iron core capable of rotating about a central axis, and a shaft to which the rotor iron core is fixed. The rotor iron core includes an annular yoke and a plurality of spokes. The yoke supports at least one conductor. The plurality of spokes are disposed spaced apart in the circumferential direction of the yoke, are provided between the yoke and the shaft, and support the yoke.
A train power conversion controller according to one aspect of the present invention is provided with an effective current command value generating unit, an overhead line voltage detecting unit, an initial value calculating unit, an adjusted value calculating unit, a maximum value setting unit, and an output limiting unit. The output limiting unit outputs a reactive current command adjusted value calculated by the adjusted value calculating unit as a reactive current command value if the reactive current command adjusted value is at or below a maximum value set by the maximum value setting unit, and outputs the maximum value as the reactive current command value if the reactive current command adjusted value exceeds the maximum value.
B60L 9/24 - Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines
H02M 7/48 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Provided is a collected current monitoring device. According to the present invention, a transformer current acquisition unit acquires a current value Ip for the current flowing in one portion of a plurality of transformers. A total collected current calculation unit uses formula (1) to calculate, from current value Ip, a current value Ia11 for the collected current supplied by a plurality of power collection devices. A collected current acquisition unit acquires a current value IX for the collected current supplied by the power collection devices other than one power collection device. A collected current calculation unit subtracts current value IX from current value Ia11 and thereby calculates a current value IY for the collected current supplied by the one power collection device. Formula (1): Ia11=Ip×(Ma11/Mp).
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 9/24 - Electric propulsion with power supply external to the vehicle using ac induction motors fed from ac supply lines
36.
VEHICLE BODY INCLINATION CONTROL APPARATUS AND FAULT DETERMINATION APPARATUS FOR VEHICLE BODY INCLINATION CONTROL APPARATUS
Provided is a vehicle body inclination control apparatus. This vehicle body inclination control apparatus is provided with an air spring part, an air accumulation part, multiple valve devices, an acquisition unit, and a determination unit. The determination unit compares, with respect to a prescribed threshold value, at least one among the value of a ratio between supply control data of supply valve parts and exhaust control data of exhaust valve parts in the same type of valve devices among the multiple valve devices, the value of a ratio of supply control data of supply valve parts between different types of valve devices among the multiple valve devices, and the value of a ratio of exhaust control data of exhaust valve parts between different types of valve devices among the multiple valve devices, and in the case when any of the values of the ratios exceeds the threshold, determines that a failure has occurred in the same type of valve devices and/or in the different types of valve devices.
B61F 5/22 - Guiding of the vehicle underframes with respect to the bogies
B60G 17/0185 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection
B60G 99/00 - Subject matter not provided for in other groups of this subclass
B61F 5/10 - Bolster supports or mountings incorporating fluid springs
B61K 13/00 - Other auxiliaries or accessories for railways
09 - Scientific and electric apparatus and instruments
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer programs [downloadable]; downloadable mobile
applications for booking of railway seats for travelers;
downloadable software for booking of railway seats for
travelers; computer application software for mobile phones,
portable media players, handed computers, namely, software
for booking of railway seats for travelers; computer memory
devices; computer operating programs, recorded; computer
peripheral devices; computer programs, recorded; computer
software application, downloadable; computer software,
recorded; downloadable image files. Transport; railway transport; passenger train transport;
booking of railway seats for travelers; coordinating travel
arrangements for individuals and for groups; booking of
travel tickets; on-line transportation reservation and
travel reservation services; providing travel information to
travelers regarding fares, timetables and public transport;
transport of travelers; transport services for sightseeing
tours; transport reservation; transport brokerage;
transportation information; traffic information; travel
reservation; arranging of travel tours. Computer software design, computer programming, or
maintenance of computer software; rental of computers;
providing computer programs; providing computer programs via
websites on the Internet; providing computer programs for
use in electronic commerce; providing computer programs for
use in online transportation reservation service and travel
ticket booking service; providing computer programs for use
in booking of travel tickets; providing computer programs
for use in arrangement of individual and group tours;
providing computer programs for use in seat reservation for
travelers; user authentication in electronic commerce;
updating of computer software; providing information on
version upgrade of computer software.
09 - Scientific and electric apparatus and instruments
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer programs [downloadable]; downloadable mobile
applications for booking of railway seats for travelers;
downloadable software for booking of railway seats for
travelers; computer application software for mobile phones,
portable media players, handed computers, namely, software
for booking of railway seats for travelers; computer memory
devices; computer operating programs, recorded; computer
peripheral devices; computer programs, recorded; computer
software application, downloadable; computer software,
recorded; downloadable image files. Transport; railway transport; passenger train transport;
booking of railway seats for travelers; coordinating travel
arrangements for individuals and for groups; booking of
travel tickets; on-line transportation reservation and
travel reservation services; providing travel information to
travelers regarding fares, timetables and public transport;
transport of travelers; transport services for sightseeing
tours; transport reservation; transport brokerage;
transportation information; traffic information; travel
reservation; arranging of travel tours. Computer software design, computer programming, or
maintenance of computer software; rental of computers;
providing computer programs; providing computer programs via
websites on the Internet; providing computer programs for
use in electronic commerce; providing computer programs for
use in online transportation reservation service and travel
ticket booking service; providing computer programs for use
in booking of travel tickets; providing computer programs
for use in arrangement of individual and group tours;
providing computer programs for use in seat reservation for
travelers; user authentication in electronic commerce;
updating of computer software; providing information on
version upgrade of computer software.
09 - Scientific and electric apparatus and instruments
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downloadable computer programs for booking of railway seats for travelers; downloadable mobile applications for booking of railway seats for travelers; downloadable software for booking of railway seats for travelers; computer application software for mobile phones, portable media players, handed computers, namely, software for booking of railway seats for travelers; recorded computer programs for booking of railway seats for travelers; downloadable computer software application for booking of railway seats for travelers; recorded computer software for booking of railway seats for travelers Railway transportation of passenger and goods; passenger train transport; booking of railway seats for travelers; coordinating travel arrangements for individuals and for groups; booking of travel tickets; on-line transportation and travel ticket reservation services; providing travel information to travelers regarding fares, timetables and public transport; transport services for sightseeing tours; travel ticket reservation service; transport brokerage, namely, railway transportation brokerage; arranging of transportation for travel tours Providing online, non-downloadable computer programs for use in online transportation reservation service and travel ticket booking service; providing online, non-downloadable computer programs for use in booking of travel tickets; providing online, non-downloadable computer programs for use in arrangement of individual and group tours; providing online, non-downloadable computer programs for use in seat reservation for travelers; updating of computer software; providing information on version upgrade of computer software
A collected current monitoring device equipped with: a current value acquisition unit that acquires current values I1 and I2; a first RMS calculation unit that calculates a root mean square RMS1 of the window width W of I1; a second RMS calculation unit that calculates a root mean square RMS2 of the window width W of I2; a determination unit that determines whether a combination of RMS 1 and RMS2 satisfies a fault condition; a fault output unit that outputs a fault occurrence signal when the fault condition is satisfied; an information acquisition unit that acquires railway vehicle information; and a setting unit that, in accordance with the railway vehicle information, sets a setting item that includes the window width W and/or the fault condition.
B60L 5/00 - Current-collectors for power supply lines of electrically-propelled vehicles
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
09 - Scientific and electric apparatus and instruments
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
(1) Downloadable computer programs for booking of railway seats for travelers; Downloadable mobile applications for booking of railway seats for travelers; Downloadable software for booking of railway seats for travelers; Computer application software for mobile phones, portable media players, handed computers, namely, software for booking of railway seats for travelers; Computer operating recorded programs; Recorded computer programs for booking of railway seats for travelers; Downloadable computer software application for booking of railway seats for travelers; Recorded computer software for booking of railway seats for travelers (1) Railway transportation of passenger and goods; Passenger train transport; Booking of railway seats for travelers; Coordinating travel arrangements for individuals and for groups; Booking of travel tickets; On-line transportation reservation and travel reservation services; Providing travel information to travelers regarding fares, timetables and public transport; Transport services for sightseeing tours; Travel and tour ticket reservation service; Transport brokerage, namely freight transportation brokerage; Arranging of travel tours
(2) Computer software design, computer programming, and maintenance of computer software; Rental of computers; Providing computer programs for reserving rail travel seats; Providing website for reserving rail travel seats; Providing free downloadable apps for reserving rail travel seats; Providing computer programs for reserving and booking of seats for travel, providing free downloadable apps for reserving and booking of seats for travel; Providing computer programs for use in booking of travel tickets; Providing computer programs for use in arrangement of individual and group tours; Providing computer programs for use in seat reservation for travelers; Updating of computer software: Providing information on version upgrade of computer software; Providing computer programs for on-line payment of rail travel seat reservations
42.
BRAKE LINING FOR RAILROAD VEHICLE AND DISK BRAKE PROVIDED WITH SAME
A brake lining (2) is provided with a plurality of friction structural bodies (3) having front surfaces that oppose a sliding surface of a brake disk, back plates (4) fixed to respective back surfaces of the friction structural bodies (3), a base plate (6) for supporting the friction structural bodies (3), and an elastic member (5) interposed between the base plate (6) and each of the back plates (4). Each of the friction structural bodies (3) includes a pair of friction parts (3M) adjacent to either side of a groove (3b) formed in the surface, and a thin-walled part (3C) provided corresponding to the groove (3b) and having less thickness than the friction parts (3M). Each of the friction structural bodies (3) is supported on the base plate (6) at two locations, and the points of support for the friction structural bodies (3) are the respective pair of friction parts (3M). The length of the thin-walled part (3C) with respect to the width direction of the friction parts (3M) is constant, and is equal to the maximum width of the friction parts (3M). With the length of the thin-walled part (3C) denoted as D and the distance between supporting points of the pair of friction parts (3M) denoted as L, L/D is at least 1.1.
09 - Scientific and electric apparatus and instruments
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downloadable computer programs for booking of railway seats for travelers; downloadable mobile applications for booking of railway seats for travelers; downloadable software for booking of railway seats for travelers; computer application software for mobile phones, portable media players, handed computers, namely, software for booking of railway seats for travelers; recorded computer programs for booking of railway seats for travelers; downloadable computer software application for booking of railway seats for travelers; recorded computer software for booking of railway seats for travelers Railway transportation of passenger and goods; passenger train transport; booking of railway seats for travelers; coordinating travel arrangements for individuals and for groups; booking of travel tickets; on-line transportation reservation and travel ticket reservation services; providing travel information to travelers regarding fares, timetables and public transport; transport services for sightseeing tours; travel tickets reservation services; transport brokerage, namely, railway transportation brokerage in the nature of passenger brokerage; arranging for the transport for travel tours Providing online, non-downloadable computer programs for use in online transportation reservation service and travel ticket booking service; providing online, non-downloadable computer programs for use in booking of travel tickets; providing online, non-downloadable computer programs for use in arrangement of individual and group tours; providing online, non-downloadable computer programs for use in seat reservation for travelers
09 - Scientific and electric apparatus and instruments
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downloadable computer programs for booking of railway seats for travelers; downloadable mobile applications for booking of railway seats for travelers; downloadable software for booking of railway seats for travelers; computer application software for mobile phones, portable media players, handed computers, namely, software for booking of railway seats for travelers; recorded computer programs for booking of railway seats for travelers; downloadable computer software application for booking of railway seats for travelers; recorded computer software for booking of railway seats for travelers Railway transportation of passenger and goods; passenger train transport; booking of railway seats for travelers; coordinating travel arrangements for individuals and for groups; booking of travel tickets; on-line transportation reservation and travel ticket reservation services; providing travel information to travelers regarding fares, timetables and public transport; transport services for sightseeing tours; travel tickets reservation service; transport brokerage, namely, railway transportation brokerage in the nature of passenger brokerage; arranging for the transport for travel tours Providing online, non-downloadable computer programs for use in online transportation reservation service and travel ticket booking service; providing online, non-downloadable computer programs for use in booking of travel tickets; providing online, non-downloadable computer programs for use in arrangement of individual and group tours; providing online, non-downloadable computer programs for use in seat reservation for travelers
09 - Scientific and electric apparatus and instruments
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
(1) Downloadable computer programs for booking of railway seats for travelers; downloadable mobile applications for booking of railway seats for travelers; downloadable software for booking of railway seats for travelers; computer application software for mobile phones, portable media players, handed computers, namely, software for booking of railway seats for travelers; computer operating recorded programs; recorded computer programs for booking of railway seats for travelers; downloadable computer software application for booking of railway seats for travelers; recorded computer software for booking of railway seats for travelers; downloadable computer graphics. (1) Railway transportation of passenger and goods; passenger train transport; booking of railway seats for travelers; coordinating travel arrangements for individuals and for groups; booking of travel tickets; on-line transportation reservation and travel reservation services; providing travel information to travelers regarding fares, timetables and public transport; transport services for sightseeing tours; travel and tour ticket reservation service; transport brokerage, namely freight transportation brokerage; arranging of travel tours.
(2) Computer software design, computer programming, and maintenance of computer software; rental of computers; providing computer programs for reserving rail travel seats; providing website for reserving rail travel seats; providing free downloadable apps for reserving rail travel seats; providing computer programs for reserving and booking of seats for travel, providing free downloadable apps for reserving and booking of seats for travel; providing computer programs for use in booking of travel tickets; providing computer programs for use in arrangement of individual and group tours; providing computer programs for use in seat reservation for travelers; providing user authentication in electronic commerce; updating of computer software: providing information on version upgrade of computer software; providing computer programs for on-line payment of rail travel seat reservations.
09 - Scientific and electric apparatus and instruments
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
45 - Legal and security services; personal services for individuals.
Goods & Services
(1) Downloadable computer programs for booking of railway seats for travelers; Downloadable mobile applications for booking of railway seats for travelers; Downloadable software for booking of railway seats for travelers; Computer application software for mobile phones, portable media players, handed computers, namely, software for booking of railway seats for travelers; Computer operating recorded programs; Recorded computer programs for booking of railway seats for travelers; Downloadable computer software application for booking of railway seats for travelers; Recorded computer software for booking of railway seats for travelers; Downloadable computer graphics (1) Railway transportation of passenger and goods; Passenger train transport; Booking of railway seats for travelers; Coordinating travel arrangements for individuals and for groups; Booking of travel tickets; Reservation and booking of seats for travel; Providing travel information to travelers regarding fares, timetables and public transport; Organization of sightseeing tours, namely, providing transportation services for sightseeing tours; Travel and tour ticket reservation service; Transport brokerage, namely freight transportation brokerage; Arranging of travel tours
(2) Computer software design, computer programming, or maintenance of computer software; Rental of computers; Providing computer programs for reserving rail travel seats; Providing website for reserving rail travel seats; Providing free downloadable apps for reserving rail travel seats; Providing computer programs for reserving and booking of seats for travel, providing free downloadable apps for reserving and booking seats for travel; Providing computer programs for use in booking of travel tickets; Providing computer programs for use in arrangement of individual and group tours; Providing computer programs for use in seat reservation for travelers; Providing user authentication in electronic commerce; Updating of computer software: Providing information on version upgrade of computer software; Providing computer programs for on-line payment of rail travel seat reservations
A converter (4) is characterized in that an equivalent circuit of the converter (4) is represented by a serial connection of an equivalent capacitor (41) and an equivalent resistor (42), and the converter (4) is provided with a control unit for controlling the capacitive reactance (Xc) of the equivalent capacitor (41) and thereby adjusting the power factor of the input power.
A controlling apparatus includes a storage unit for storing, for each sampling period, a combination of a primary frequency of connected induction motors and the amplitude of a voltage command value, and a gradient detection unit for calculating a value corresponding to an increase in the amplitude of the voltage command value divided by an increase in the primary frequency, and for outputting a failure signal upon determining, when a result of the division is less than a predetermined reference value, that the plurality of induction motors include at least one induction motor having a phase sequence that includes incorrect wiring with respect to the power converter.
H02P 5/46 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
H02P 5/74 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
B60W 20/00 - Control systems specially adapted for hybrid vehicles
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
H02P 5/747 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors mechanically coupled by gearing
nd-order integrated value of the acceleration detected by the acceleration detection unit; and a subtraction unit that counterbalances an undulating component of the wheel by subtracting a value detected by the rail position detection unit from a value calculated by the integration unit, and calculates an amount of horizontal-direction displacement of the rail.
B61K 9/08 - Measuring installations for surveying permanent way
G01B 21/20 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
61.
HEAT-TOLERANT TOMATO MUTANT AND METHOD FOR PRODUCING SAME
Provided is a heat-tolerant tomato plant having a high ability of forming seed-containing fruits under high-temperature conditions. The present invention relates to: a method for producing a heat-tolerant tomato plant, which comprises introducing a genetic mutation for improving the pollen survival rate and the ability of forming seed-containing fruits under high-temperature conditions compared with those of a wild-type plant into a tomato plant; and a heat-tolerant tomato plant having the mutation introduced thereinto.
One aspect of the present invention pertains to a railroad car having a plurality of electrical circuits. The railroad car is provided with: an external power source connection unit; a normally-closed contactor that opens or closes a common line for connecting the plurality of electrical circuits to the ground side, and that opens the common line in response to the supply of power from the external power source connection unit but closes the common line in the absence of power supply; and an operation prohibition determination unit that determines whether the supply of power to the plurality of electrical circuits has been stopped, and prohibits opening of the common line by the contactor when the power supply has not been stopped.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B61K 13/00 - Other auxiliaries or accessories for railways
63.
Railroad vehicle and plug door for railroad vehicle
A railroad vehicle that moves a door to an airtight position and maintains air tightness of the door without increasing the size of a cylinder device; and a plug door for a railroad vehicle. When a door moves to a position, a piston extends in the vehicle width direction, a pressing member is contacts the inner surface of the door, and the door is moved toward a door frame. An auxiliary pressing device brings the piston into perpendicular contact with the inner surface of the door making it is possible to efficiently move and press the door without increasing the size of a cylinder device even when the door must be moved across a distance to arrive at an airtight position. The main pressing device is used to press the door toward the door frame.
B61D 19/00 - Door arrangements specially adapted for rail vehicles
B61D 19/02 - Door arrangements specially adapted for rail vehicles for carriages
E05D 15/10 - Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane
64.
Damage detecting device for supporting structure for armature shaft
A damage detecting device according to one aspect of the present invention comprises a first speed generator, a second speed generator, a first waveform shaping section, a second waveform shaping section, and a determining section. The determining section compares a second rectangular wave shaped by the second waveform shaping section and a first rectangular wave shaped by the first waveform shaping section and, if the first rectangular wave is not output while the second rectangular wave is output, determines that a supporting device for an armature shaft is damaged or worn.
G01N 27/82 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
H02K 15/16 - Centering rotors within the stator; Balancing rotors
According to an embodiment of the present invention, an electric vehicle control device is provided with: a plurality of motors that are capable of transmitting motive power to the wheels of an electric vehicle; and an inverter that supplies electric power for driving the plurality of motors. A control unit controls the inverter and, when the electric vehicle is moving under prescribed speed conditions, compares q-shaft voltage feed forward values (VqFF) and q-shaft voltage command values (Vq*) that are used for drive control of the motors and detects that a miswiring exists between the motors and the inverter when VqFF≥1.5・Vq*. The control unit can thereby detect miswirings between the plurality of motors and the inverter that are installed in an electric vehicle and that drive the wheels of the electric vehicle.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
66.
ELECTRIC VEHICLE AND DEVICE FOR CONTROLLING POWER CONVERTER
This device, which is for controlling a power converter (10) such as an inverter that operates a plurality of induction motors (41) that are connected in parallel to each other and are mechanically coupled, is provided with: a current detection means (30) that detects the output current of the power converter (10); a current control means (90) that generates a voltage command value that causes the current detection value to match a current command value; a voltage command amplitude computation means (100) that computes the amplitude of the voltage command value; a storage means (110) that, for every sampling period, stores the combination of the primary frequency of the induction motors (41) and the amplitude of the voltage command value at the time; and a slope detection means (120) that computes the value resulting from dividing the amount of increase in the amplitude of the voltage command value by the amount of increase in the primary frequency on the basis of the stored information in the storage means (110), and when the division result falls below a predetermined baseline value, determines that there is at least one induction motor (41) among the plurality of induction motors (41) that has an erroneously wired phase sequence with respect to the power converter (10), and outputs a breakdown signal.
H02P 5/74 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 9/18 - Electric propulsion with power supply external to the vehicle using ac induction motors fed from dc supply lines
This sensor state determination system is a sensor state monitoring system capable of accurately determining whether or not a detecting sensor used with a railroad vehicle is in an abnormal state. This system includes: a detecting sensor capable of detecting a physical value acting upon the railroad vehicle; and an electronic control device. A monitoring sensor equivalent to the detection sensor is installed at a position equivalent to the position of the detection sensor. The electronic control device is provided with a determination means (coherence calculation section, state determination section) that computes, based on a first signal detected by the detecting sensor and a second signal detected by the monitoring sensor, a coherence value indicating a correlation between the signals. The electronic control device determines that the detecting sensor is in an abnormal state if the coherence value is smaller than a preset abnormality determination value.
B61F 5/24 - Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
G01P 21/00 - Testing or calibrating of apparatus or devices covered by the other groups of this subclass
G01D 3/08 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
This earthquake prediction device is provided with a predicted value calculation unit (16) that calculates, from a prediction formula, a prediction value (MMIap) indicating the magnitude of expected ground motion according to the modified Mercalli intensity scale after sensors have begun detecting earthquake ground motion, by using a maximum acceleration value (Aumax), which is the maximum absolute value among absolute values of an acceleration component in the vertical direction of ground motion. The prediction formula is: MMIap = αalog10(Aumax) + βa.
This earthquake prediction device is provided with a predicted value calculation unit that calculates, from a prediction formula, a predicted value (MMIvp) indicating the magnitude of expected ground motion according to the modified Mercalli intensity scale after sensors have begun detecting the ground motion of an earthquake, by using a maximum velocity value (Vumax), which is the maximum value among the absolute values of a velocity component calculated by a vertical velocity calculation unit. The prediction formula is: MMIvp = αvlog10(Vumax) + βv.
Provided is a sound absorption panel that can satisfy the heat resistance properties and melting/dripping resistance properties required inside of a railroad vehicle. A mixed sound absorption panel (10) comprises five sheets of first through fifth glass cloths (13-17) that are stacked on an aluminum substrate (11). The edge section of the fifth glass cloth (17) is affixed to the rear surface of the substrate (11) using an adhesive, and the first through fourth glass cloths (13, 14, 15, 16) are fastened using staples. In other words, the first glass cloth (13) and the substrate (11) are fixed using an adhesive, and this adhesive is prevented from melting by the five sheets of the first through fifth glass cloths (13-17). The adhesive that fixes the edge section of the fifth glass cloth (17) at the other surface of the substrate (11) is prevented from melting by the five sheets of the first through fifth glass cloths (13-17) and the substrate (11).
Provided are a railroad vehicle that makes it possible to maintain the air tightness of a door and a plug door for a railroad vehicle. A second rail (9) is provided parallel to a first rail (2) in the longitudinal direction of a vehicle body above the leading edge side (door (8) side) of a plug rail (5). The second rail (9) supports the leading edge side of the plug rail (5). As a result, both edges of the plug rail (5) are supported by the first rail (2) and the second rail (9). Dangling of the leading edge side of the plug rail (5) is thus prevented even when the plug distance (the distance that the door (8) moves in the vehicle body width direction) is long. In this way, it is possible to block the doorway without leaving a gap using the door (8) and to maintain the air tightness of the door (8).
B61D 19/02 - Door arrangements specially adapted for rail vehicles for carriages
B61D 19/00 - Door arrangements specially adapted for rail vehicles
E05D 15/10 - Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane
75.
RAILROAD VEHICLE AND PLUG DOOR FOR RAILROAD VEHICLE
Provided are: a railroad vehicle that efficiently moves a door to an airtight position and makes it possible to maintain the air tightness of the door without increasing the size of a cylinder device even when the door must be moved across a distance to arrive at the airtight position; and a plug door for a railroad vehicle. When a door (8) moves to the position that is indicated by the two-dot/dash line in figure 1, a piston (32) extends in the vehicle width direction, a pressing member (33) is brought into contact with the inner surface of the door (8), and the door (8) is moved toward a door frame (W) (in the vehicle body width direction). Due to the fact that an auxiliary pressing device (30) brings the piston (32) into perpendicular contact with the inner surface of the door (8), it is possible to efficiently move and press the door (8) without increasing the size of a cylinder device even when the door must be moved across a distance to arrive at an airtight position. In addition, the main pressing device (40) that is indicated in figure 5 is subsequently used to further press the door (8) toward the door frame (W).
A folding table (1) comprises: a table body (3) provided with a pair of hinge pins (35) protruding oppositely in the left-right direction, and also with a pair of lock pins (36) protruding oppositely in the left-right direction; and a pair of left and right brackets (21, 22) having formed therein shaft holes (41) and movable holes (42), the shaft holes (41) allowing the hinge pins (35) serving as the center of rotation to be inserted therein, the movable holes (42) allowing the lock pins (36) to be inserted therein and having spring members (43, 44, 45) mounted therein, the spring members (43, 44, 45) pressing the lock pins (36). The table body (3) is rotatably supported by the brackets (21, 22) affixed to a wall surface. The folding table (1) has closing plates (5) which are plate members having through-holes (51, 52) formed therein, the through-holes (51, 52) respectively allowing the hinge pins (35) and the lock pins (36) of the table body (3) to penetrate therethrough, and the closing plates (5) are sandwiched between the table body (3) and the brackets (21, 22) in order to close the movable holes (42).
A device for detecting damage according to one aspect of the invention includes a first speed generator, a second speed generator, a first waveform shaping unit, a second waveform shaping unit, and a determination unit. The determination unit compares second rectangular waves shaped by the second waveform shaping unit with first rectangular waves shaped by the first waveform shaping unit, and, when the first rectangular waves are not output while the second rectangular waves are output, determines that the support member for the armature shaft has been damaged or is worn.
H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
G01H 11/02 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance
Provided is a track status monitoring device provided with: an acceleration detection section provided on a railway car, said acceleration detection section detecting, from among accelerations generated on a wheel of the railway car, at least an acceleration in a wheel axle direction; a rail position detection section provided on the railway car, said rail position detection section detecting a value indicating a wheel-axis-direction position of a rail relative to the wheel; an integral computation section that computes a value based on a double integral of the acceleration detected by the acceleration detection section; and a subtraction computation section that by subtracting, from the value computed by the integral computation section, the value detected by the rail position detection section, offsets the meandering component of the wheel and computes a displacement quantity in the left/right direction of the rail.
G01B 21/00 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
B61K 9/08 - Measuring installations for surveying permanent way
83.
LAMINATE INCLUDING TOP COATING LAYER COMPRISING SCALY METAL OXIDE FINE PARTICLES
An objective of the present invention is to provide a laminate having excellent abrasion resistance against physical irritation such as dust. The present invention provides a laminate wherein a substrate layer, a hard coating layer and a top coating layer comprising scaly metal oxide fine particles are laminated in succession. The present invention is characterized by forming a top coating layer by curing scaly metal oxide fine particles by using at least one method selected from the group consisting of ionizing substance irradiation, ionizing irradiation, infrared irradiation, microwave irradiation and hot water-vapour exposure.
B32B 5/16 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer formed of particles, e.g. chips, chopped fibres, powder
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
B32B 27/14 - Layered products essentially comprising synthetic resin next to a particulate layer
This sensor state determination system (50) is a sensor state monitoring system that is capable of accurately determining whether or not a detection sensor used with a railroad vehicle is in an abnormal state, and is equipped with: a detection sensor (51) capable of detecting a physical value acting upon the railroad vehicle (1); and an electronic control device (60). A monitoring sensor (52) equivalent to the detection sensor (51) is installed at a position equivalent to the position where the detection sensor (51) is installed. The electronic control device (60) is provided with a determination means (coherence computation unit (62), state determination unit (63)) that computes, on the basis of a first signal (X) detected by the detection sensor (51) and a second signal (Y) detected by the monitoring sensor (52), a coherence value (CXY) which indicates a correlation between the signals, and determines that the detection sensor (51) is in an abnormal state if said coherence value (CXY) is smaller than a preset abnormality determination value.
Each of a plurality of power conversion apparatuses that are lined up along the moving direction of a plurality of railway cars connected with each other is provided with a conversion unit that converts power, a heat radiation unit that radiates heat generated at the conversion unit to passing wind, and a control unit that controls the converted power. The control unit of a first power conversion apparatus increases/decreases the power to be converted at the conversion unit of the first power conversion apparatus, on the basis of information relating to the number of other heat radiation units that are disposed forward of the heat radiation unit of the first power conversion apparatus in the moving direction and radiate heat to passing wind, and/or information relating to the distance to another heat radiation unit that is adjacent thereto and forward of the same in the moving direction.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B61C 17/00 - LOCOMOTIVES; MOTOR RAILCARS - Details or accessories not otherwise provided for; Use of control gear and control systems
A transformer includes a primary coil, a secondary coil, and a core. The core is to be used in combination with the primary coil or the secondary coil, and includes a conductor storage part and a central part. The conductor storage part is a concave recess formed in an annular manner and configured to store a conductor of the coil therein. The central part is a region inward from the conductor when the core is used in combination with the coil. The central part has a recessed shape having an opening that opens toward a direction opposite to a direction of an opening of the concave recess. The central part has an end, at a side opposite to a side of the opening of the central part, which is generally flat so as to be contiguous with an inner opening edge of the conductor storage part.
H01F 21/04 - Variable inductances or transformers of the signal type continuously variable, e.g. variometers by relative movement of turns or parts of windings
H01F 21/06 - Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole
H01F 17/06 - Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
A bogie frame (1) for a railroad vehicle, provided with a lateral beam body optimally shaped for the arrangement of equipment on the bogie. In the bogie frame (1), a lateral beam (13) disposed in the left-right direction which is the direction in which the rail ties extend is joined to left and right side beams (12) arranged so as to extend in the front-rear direction which is the direction in which the rails extend. The lateral beam (13) has a flat shape having a width in the front-rear direction greater than the thickness thereof in the top-bottom direction, and the lateral beam (13) is provided with left and right joining sections (31) joined to the side beams (12), and also with an intermediate section (32) sandwiched between the left and right joining sections (31). The width of the intermediate section (32) in the front-rear direction is greater than the width of the joining sections (31) in the front-rear direction. A through-hole (33) is formed in the intermediate section (32).
The first object of the present invention is to provide a derailment prevention guard which can be easily shunted outside the range of the ballast tamping work, the rail grinding work and the rail maintenance work, and has no problem on safety.
A derailment prevention guard comprises a guard member installed within a gauge and a support member fixed to a sleeper or a concrete slab track, and the guard member is held by a hold member which can turn around a central axis supported by the support member as turning center between a main rail and the inside of the gauge on the sleeper or the concrete slab track, and the support member is engaged with the hold member by means of a bolt through turning the hold member toward the main rail around the central axis as turning center on the sleeper or the concrete slab track, and the guard member can be shunted inward within the gauge by turning the hold member toward the inside of the gauge around the central axis as turning center on the sleeper or the concrete slab track after loosening the bolt.
The first object of the present invention is to provide a derailment prevention guard which can be easily shunted outside the range of the ballast tamping work, the rail grinding work and the rail maintenance work, and has no problem on safety.
A derailment prevention guard comprises a guard member installed within a gauge and a support member fixed to a sleeper or a concrete slab track, and the guard member is held by a hold member which can turn around a central axis supported by the support member as turning center between a main rail and the inside of the gauge on the sleeper or the concrete slab track, and the support member is engaged with the hold member by means of a bolt through turning the hold member toward the main rail around the central axis as turning center on the sleeper or the concrete slab track, and the guard member can be shunted inward within the gauge by turning the hold member toward the inside of the gauge around the central axis as turning center on the sleeper or the concrete slab track after loosening the bolt.
A wheel guard apparatus capable of preventing a wheel from derailing and preventing a vehicle from seriously deviating from a track even if the wheel has derailed includes a fixed portion fixed to a railroad tie located between main line rails; a movable portion supported by a rotating shaft provided on the fixed portion and extending in a horizontal direction and configured to be rotatable around the rotating shaft toward a track center side; and a guard rail located at a position separated from the rotating shaft of the movable portion and held to extend in parallel with the main line rail. The guard rail includes an outer stopper portion configured to prevent the wheel from derailing toward an inner side of the main line rail and an inner stopper portion configured to prevent a derailed vehicle from deviating to an outer side of a track.
Disclosed is a traverse control unit of a truck wherein a large impact can be prevented from being applied to a stopper when the traverse control unit of a truck is operating during the derailment. A traverse control unit of a truck is provided with a derailment prevention guard (52) along the inside of a rail (51), and a stopper (25) which comes in slidable contact with on the inner side surface (52a) of the derailment prevention guard at a position inner than the wheel (15) of a truck (11), wherein the stopper is provided with a slide portion (28) having a slide surface which comes in slidable contact with the inner side surface of the derailment prevention guard, and a guide (31) having guide slopes (31a) projecting, respectively, to the front and rear of the slide portion with the distal end inclining in the direction receding from the inner side surface of the derailment prevention guard, and the proximal portion being continuous to the slide surface.
Disclosed is a system for inspecting the quantity of oil in each part of a vehicle chassis. The system is provided with: an image pickup unit that acquires an image of an oil level meter; an oil level inspection unit that inspects whether or not the quantity of oil in each part of a vehicle chassis is within a prescribed range, based on the image of the oil level meter acquired by the image pickup unit; a voice input unit for vocal input of inspection results by inspection staff; a voice processing unit that determines whether the inspection result that has been input through the voice input unit is satisfactory or not and converts the result of this determination to data which can be displayed; a display unit that displays the oil level inspection result and determination result; and a cumulative storage unit that accumulates the oil level inspection results and determination results as data.
G01F 23/28 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
An open/close control system for an inspection lid adapted not to open while a vehicle travels. An emergency release device is provided behind the inspection lid, where the emergency release device disables power transmission of a driver which opens and closes a side entrance/exit door of a railway vehicle. The emergency release device is installed in a space inside a wall surface inside the vehicle, and the space can be opened and closed by the inspection lid. The open/close control system has a locking device provided in the space inside the wall surface in order to restrict rotation of the inspection lid, and also has an open/close controller which detects traveling of the railway vehicle to actuate the locking device.
A method for producing ozone-water includes steps of providing a cathode and an anode so as to interpose a solid polymer film therebetween, and electrolyzing water. A conductive diamond having one of a porous structure and a mesh structure is used as the anode. Ozone-water of an intermediate to high temperature is produced by electrolyzing water of an intermediate to high temperature.
C25B 9/00 - Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
C25C 7/00 - Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
95.
BALLAST FIXING WORK, JIG FOR TOOL, AND BALLASTED FLOOR TRACK
A ballast fixing work for supporting, from the traverse direction, ballast extending in a roadbed extending direction by compacting ballast laid down on a roadbed. The work comprises a stacked body formed by so tilting and stacking a plurality of bag-shaped articles containing the ballast on the roadbed as to be lowered from the outer end toward the inner end between the slope hip section to the slope shoulder section thereof.
Disclosed is a positive-type photosensitive composition which can form a metal compound thin film pattern at high resolution and with less affection by organic residues. The positive-type photosensitive composition comprises: a metal complex component (A) which can form a metal compound thin film when applied and subsequently fired; and a photosensitizing agent (B). In the composition, a ligand in the component (A) is preferably a multidentate ligand having an aromatic compound as its skeleton. According to this construction, even a composition containing substantially no photosensitive resin can impart photosensitivity and a metal compound thin film pattern can be formed readily.
A derailment prevention guard includes a guard member (3) installed within a gauge and a support member (6) fixed to a sleeper (4) or a concrete slab track. The guard member (3) engages a hold member (8) moveable around an axis (7) supported by the support member (6) as turning center between a main rail (1) and the inside of the gauge on the sleeper. The support member (6) engages the hold member (8) by bolt (12) through turning the hold member (8) toward the main rail (1) around the central axis (7) as turning center on the sleeper (4), and the guard member (3) can be shunted inward by turning the hold member (8) toward the inside of the gauge around the central axis (7) as turning center on the sleeper (4) after loosening the bolt (12).
Provided is a wheel guard apparatus equipped with a stationary part (5) fixed to a crosstie (2) between the main track rails (3); a movable part (7) which is supported on a horizontal pivot shaft (6) arranged on the stationary part (5) and which can pivot around the pivot shaft (6) toward the center of the track; and a guard rail (12) held parallel with the said main track rails (3) in a position remote from the said pivot shaft (6) of the movable part (7); an outer retaining part (17) to prevent the wheels from derailing toward the inside of the main track rails (3) and an inner retaining part (18) to prevent derailed rolling stock from deviating toward the outside of the track are provided on the guard rail (12) to not only prevent wheel derailment, but also to provide a guarding function so that rolling stock will not deviate significantly from the track should a wheel derail.
An open/close control system for an inspection lid adapted not to open while a vehicle travels. The open/close control system has emergency release means (1) which disables power transmission of drive means for opening and closing a side entrance/exit door of a railway vehicle. The emergency release means (1) is installed in a space inside a wall surface (2) inside the vehicle, and the space can be opened and closed by the inspection lid (5). The emergency release means (1) has locking devices (7, 10) provided in the space inside the wall surface (2) in order to restrict rotation of the inspection lid (5), and also has an open/close controller for detecting traveling of the railway vehicle to actuate the locking device (10).
A ballast stopping work is employed in a bedded track comprising a track bed formed by laying ballast on the roadbed, compacting the ballast to form a floor type structure having a predetermined cross-section such as trapezoid and extending the ballast in the extending direction of the roadbed, a plurality of railroad ties arranged on the track bed such that the longitudinal direction intersects the extending direction of the roadbed perpendicularly, and a pair of rails fastened to the upper surface of a plurality of railroad ties along the extending direction of the roadbed. The ballast stopping work is arranged on the opposite sides of the track bed in the traverse direction thereof and supports the track bed from the opposite sides in the traverse direction. Furthermore, a first laminate is provided to extend in the extending direction of the roadbed by piling a plurality of bags filled with the ballast from the bottom to the shoulder of the slope of track bed, and holes for interconnecting the inside and the outside of the bag are formed at least in the upper and lower surface of the bag.